document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1082700>Question 1082700</A>: <I><SPAN STYLE=\"word-break: break-all;\"> eight mechanical experts can assemble 4 computers in 5 hours. how many mechanical experts will be needed to assemble 21 computers in 10 hours? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #696771 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52781)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=696771\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "<PRE STYLE=\"white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;\">\r\n" );
document.write( "Your proportion is\r\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4%2F%288%2A5%29 ALIGN=MIDDLE  ALT=\"4%2F%288%2A5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=21%2F%28x%2A10%29 ALIGN=MIDDLE  ALT=\"21%2F%28x%2A10%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >,\r\n" );
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document.write( "where x is the number under the question.\r\n" );
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document.write( "Solve for x.\r\n" );
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document.write( "4*x*10 = 21*8*5  ====>  x = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2821%2A8%2A5%29%2F%284%2A10%29 ALIGN=MIDDLE  ALT=\"%2821%2A8%2A5%29%2F%284%2A10%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 21.\r\n" );
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document.write( "<U>Answer</U>.  21 experts.\r\n" );
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document.write( "Notice that each side of the proportion express the work rate (productivity) in the units \"computer per man-hour\".\r<BR>\n" );
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document.write( "Making such proportion is the easiest way to solve the problem.\r<BR>\n" );
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document.write( "It is typical joint work problem. See the lesson\r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;- <A  rel=nofollow HREF=http://www.algebra.com/algebra/homework/Rate-of-work-word-problems/Rate-of-work-problem.lesson>Rate of work problems</A> \r<BR>\n" );
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document.write( "in this site.\r<BR>\n" );
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document.write( "Also, you have this free of charge online textbook in ALGEBRA-I in this site\r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;- <A  rel=nofollow HREF=https://www.algebra.com/algebra/homework/quadratic/lessons/ALGEBRA-I-YOUR-ONLINE-TEXTBOOK.lesson>ALGEBRA-I - YOUR ONLINE TEXTBOOK</A>.\r<BR>\n" );
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document.write( "The referred lesson is the part of this textbook under the topic \"<U>Rate of work and joint work problems</U>\" of the section \"<U>Word problems</U>\".\r<BR>\n" );
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